键参数函数在高铬白口铸铁合金化元素选择上的应用

Selecting the Alloying Elements for High Chrominum White Cast Iron by the Function of Chemical Bond Parameters

根据化学键理论，推导出新的键参数函数图，为合金化元素的选择提供了依据。本文依据键参数函 数目，选择了以 Ｖ、Ｔｉ、Ｃｕ使合金化元素，并配合适量的 Ｍｏ。结果表明，高铬白口铸铁铸态下的韧性、耐磨性 能大大改善。由此说明可用该函数图选择高铬白口铸铁的合金化元素。

According to the chemical bond theory, the new function of bond parameters, which provides theoretical basis for the selection of alloying elements, has been derived. On the basis of the new finction of bond parameters, V 、 Ti 、Cu,Which were as the alloying elements for high chromium white cast iron plus some Mo, were selected. The results show that the impact toughness and the abrasive resistance of the high chromium white cast iron as cast has been improved. It was concluded that the alloying elements for high chromium white cast iron can be selected according to the function of bond parameters.